Chelodesmidae Cook 1895

Key to Chelodesmidae from the Udzungwa Mountains (based on gonopodal characters) 1. Prefemoral process (prp) not in contact with solenomere (Fig. 19); coxa (cx) without a conical process distally on anterior side ............................................ Callistocilla dolorotrix Hoffman, 2005 – Prefemoral process in close contact with solenomere; coxa usually with a conical process (cxp) distally on anterior side ..................................................................................................................... 2 2. Prefemoral process (Figs 16–17, prp) elaborate, with several rows of strong spikes ........................ ................................................................................... Dionaeadesmus force Enghoff gen. et sp. nov. – Prefemoral process not so elaborate, without rows of strong spikes ................................................ 3 3. Solenomere (slm) very broad, much broader than prefemoral process (Fig. 14) ............................... .................................................................................................... Tanzaniella howelli Hoffman, 1977 – Solenomere not much broader than prefemoral process (Morogorius spp.) .................................... 4 4. Parasolenomere (ps) deeply divided into two subequal lobes; coxal process (cxp) very poorly developed (Figs 5–6) ............................................................... Morogorius divisus Enghoff sp. nov. – Parasolenomere not divided into subequal lobes .............................................................................. 5 5. Parasolenomere (ps) slender, straight, pointed with a tiny needlelike side branch (nb) (Fig. 9) ........ .................................................................................................... Morogorius pugio Enghoff sp. nov. – Parasolenomere different .................................................................................................................. 6 6. Parasolenomere (ps) short, stout (Figs 11–12) ................................................................................. 7 – Parasolenomere (ps) larger, consisting of a broad basal part and a tapering apical part (Fig. 8) ....... ........................................................................................ Morogorius louishanseni Enghoff sp. nov. 7. Parasolenomere (ps) rounded, with a basal retrorse process; prefemoral process very broad, almost circular (Fig. 12) ................................................................... Morogorius cochlear Enghoff sp. nov. – Parasolenomere (ps) pointed; prefemoral process not so broad (Fig. 11) .......................................... ............................................................................................. Morogorius kitungulu Enghoff sp. nov.